9-Letter Words Matching N_____U__

There are 18 9-letter words that match N_____U__. 5 are common words, such as NAILBRUSH and NEGRITUDE. A rarer one is NONSECURE. In this set, O is the most frequent open letter (13 words). 3 words contain a doubled letter.

Full list 18

nailbrushnegritudenobeliumsnonsexualnumbskullnewshoundngultrumsnigritudenoctilucanonvisualnoncasualnonimmunenoninjurynonissuesnonlegumenonliquidnonmanualnonsecure

About this list

Words
18 (5 common words)
Common example
nailbrush
Rare example
nonsecure
Doubled letters
3
Ending in S
3
Most frequent letter
O (13)

Questions

How many 9-letter words matching n_____u__ are there?

18. 5 of them are common words.

What is a common example?

NAILBRUSH is among the common words in this set.